I think amigurumi is only done in crochet. I've never seen patterns in knit. There are patterns for knit toys, but I don't they would be considered amigurumi. You can check out knitting pattern central. See what they have in either the animal or toy category.

There are a few knitted patterns on the net. I posted a tutorial on my site about knitting amigurumi. You could make a head with 48 sts at the diameter and a 'vase-shaped' body and add felt ears, arms and legs.

hi all - thanks for your help. I found a post on craftster.org with the most adorable knit kitty pattern - they're felted but that's cool too. I've already picked up some yarn and bought the pattern. I think I'm gonna knit up a bunch.